Boom Hoist Operation - Manitowoc 18000 Operator's Manual

OPERATING CONTROLS AND PROCEDURES
Lower
Boom
Handle A
OFF
Raise
Boom
Standard Mode
Lower
Jib
OFF
Raise
Jib
Luffing Jib Mode
NOTE: The speed of each crane function (all drums, swing
and travel) and swing torque can be adjusted to
suit operator needs. See Function Speed/Torque
Adjustment later in this section.

Boom Hoist Operation

See Figure 3-10 for drum identification.
See Figure 3-18 for the following description of operation.
CAUTION
Rigging Damage!
Check that boom hoist wire rope is reeved through all
sheaves and spooled properly onto boom hoist drum
before raising boom from ground.
See Boom Rigging drawing in Section 4 for wire rope and
reeving specifications. See Wire Rope Installation in
Section 4 for instructions on attaching wire rope to boom
hoist drum.
3-38
1.
3-104a
3-117 NOTE:
Handle D
2.
Do not turn on boom hoist park while raising or lowering
boom; brake will bring boom to an abrupt stop. This action
could cause shock load damage to boom. Bring boom to a
smooth stop with boom hoist handle and then turn on
boom hoist park.
3.
4.
Lower
Boom
Raise NOTE:
OFF
Boom
Pay out load lines while lowering boom. Load may contact
boom point or jib point sheaves if this step is not taken.
FIGURE 3-18
Wire rope or other parts could break allowing load to fall.
5.
NOTE:
6.
Published 12-05-17, Control # 032-23
Select and confirm STANDARD mode.
In Standard mode, the boom hoist drum is
controlled by handle A. See handle display light to
determine what drum is controlled by what handle.
Turn off boom hoist park (drum 4).
CAUTION
Boom Damage!
Increase engine speed to desired RPM with hand
throttle. Depress foot throttle to momentarily increase
engine speed when more power is required.
Move boom hoist handle A (Drum 4) BACK from off to
RAISE boom or move handle FORWARD from off to
LOWER boom.
When luffing mode is selected, the boom hoist
drum is controlled by Handle D.
WARNING
Two-Blocking Hazard!
As boom nears desired angle, slowly move boom hoist
handle A toward off to decrease speed. Then move
handle A to off to stop boom and hold it in position (park
brakes spring apply).
Besides being equipped with a boom up limit, a
physical boom stop cushions boom raising
between approximately 75° and the Max Up limit.
The boom stop also provides a physical stop at
85°.
Turn on drum 4 park if boom angle will not be changed.
18000 OPERATOR MANUAL